Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.5
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
3691
Points per Word
0.000271
Page Count
32
Points per Page
0.03125
Description
This book discusses how old are the oldest rocks, what are meteorites, and how do we get metal from rocks.